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1538 articles for “surface”
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A Novel Approach for Power Generation from Ocean Waves Using Ratchet and Pawl Mechanism
Abstract: Renewable energy sources collectively contribute around 29% to 30% of global electricity generation. Solar and wind power’s intermittency and weather dependency pose challenges for unreliable energy generation, requiring storage solutions like batteries and environmental considerations. By considering the above-mentioned factors, ocean wave energy stands out as a promising and consistent renewable source. Ocean wave energy is highly predictable and consistent, offering a dependable power supply with minimal greenhouse gas emissions …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 1, 2024 · pp. 1–7 Read article
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Application of Nanotechnology in Rasaushadhi Preparations for Nanoparticle Synthesis—A Comparative Review
Abstract: Nanotechnology—a constantly evolving branch of science and technology—reveals great potential for the early diagnosis, care and mitigation of numerous illnesses. In the field of Ayurvedic medicine, a variety of herbal, herbo-mineral and herbo-metallic compositions are used in formulations namely Bhasma, Kupipakwa Rasayana, Kharaliya Rasayana since a long era. To minimize the particle size of the substance (nanoparticles), procedures such as Shodhana, Nirvapa, Mardana, Bhavana, Marana, and others are carried out. …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 13, Issue 2, 2024 · pp. 1–8 Read article
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Optimizing PLA Filament Production for Enhanced 3D Printing Performance
Abstract: This research explores the optimization of polylactic acid (PLA) filament production to improve its performance in 3D printing applications. PLA is a widely used biodegradable polymer known for its eco-friendliness and ease of processing in additive manufacturing. The study investigates various parameters affecting PLA filament production, including material purity, extrusion temperature, filament diameter consistency, and cooling methods. Furthermore, the research evaluates how these fabrication parameters influence the printability of PLA …
Published in International Journal of Energy and Thermal Applications · Vol. 2, Issue 1, 2024 · pp. 21–29 Read article
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Impact of Marine Pollution Threats and Conservation of Marine Biodiversity
Abstract: Ocean occupies 71% of earth’s surface and is traditionally divided into four large basins including North and South Atlantic, North and South Pacific, Arctic and Indian oceans. In India we have a vast coastal area of 7516.6 km from Kolkata to Gujarat and also many islands including Andaman and Nicobar and Lakshadweep with vast fin and shellfish biodiversity. Human interference and both natural and artificial factors pose the biggest threat …
Published in International Journal of Marine Life · Vol. 1, Issue 1, 2024 · pp. 20–24 Read article
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A Comprehensive Review of Biodegradable Polymers in Sustainable Packaging Applications
Abstract: The widespread use of synthetic plastics poses significant environmental challenges due to their durability and dependence on non-renewable resources. Biodegradable plastics, derived from renewable biological sources, offer a sustainable alternative that can mitigate waste disposal issues and environmental pollution. This paper examines the factors influencing the suitability of bioplastics for various packaging applications and discusses emerging techniques to enhance their properties. Regarding packaging applications in particular, biodegradable plastics offer a …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 13, Issue 1, 2024 · pp. 28–37 Read article
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A Review on Aerospace Materials and Metallurgy
Abstract: Aerospace metalworking is comparable to the foundation of both space travel and transportation. It involves the scientific design and application of metals and alloys to offer components with the strength required for flight and the ability to survive harsh environments. Although other alloys feature cobalt or iron as the main ingredient, nickel makes up most of alloys used in aeronautical applications. When exceptionally high strength is required in moderate-temperature settings, …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 2, Issue 1, 2024 · pp. 21–26 Read article
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Prevalence of Rose Powdery Mildew in Different Districts of Himachal Pradesh, India
Abstract: The present investigation was done in the month of March to June and August to November to survey the powdery mildew infection on commercial greenhouses, nurseries and garden grown roses. Powdery mildew manifests as white to grayish patches of powdery growth on the surfaces of plant organs. Powdery mildew of rose was presented all rose growing areas of districts Bilaspur, Kangra, Mandi, Sirmour, Shimla and Solan during the years 2015 …
Published in International Journal of Fungi · Vol. 1, Issue 1, 2024 · pp. 13–18 Read article
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Comparative Assessment of Antibacterial Effectiveness, Bioactivity, Fluoride Release, and Microleakage of Various Bioactive Smart Composites: An In Vitro Investigation.
Abstract: The demand for dental composites with enhanced properties has led to the development of bioactive smart composites aimed at addressing multiple aspects of restorative dentistry. This in vitro investigation aimed to conduct a comparative assessment of the antibacterial effectiveness, bioactivity, fluoride release, and microleakage properties of various bioactive smart composites. Bioactive smart composites are emerging dental materials designed to promote remineralization and inhibit bacterial growth, thereby enhancing the longevity of …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 76–86 Read article
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Experimental analysis of wind turbine blade (HAWT) with recycled carpet waste polymer composite material
Abstract: The term "carpet" is often used interchangeably with "rug," but there is a technical distinction. Rugs are generally smaller and can be easily moved, while carpets are typically larger and cover a significant portion of the floor. Carpets are commonly used to enhance the comfort of indoor spaces, provide insulation, and contribute to the overall design and atmosphere of a room. Polymer composite materials also known as polymer matrix composites …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 259–265 Read article
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Green Synthesis of Silver Nanoparticles: Antifungal Efficacy Against Aspergillus niger and Agricultural Benefits
Abstract: Silver nanoparticles (AgNPs) are gaining significant attention in agriculture due to their potent antifungal properties. This study focuses on evaluating the antifungal effects of green synthesized AgNPs derived from Aloe vera leaf extract against the pathogenic fungus Aspergillus niger. The results indicate that the synthesized nanoparticles exhibited a strong absorption maximum at 550 nm, indicative of surface plasmon resonance. UV-Vis spectroscopy was used to analyze the nanoparticles, and the solution …
Published in International Journal of Fungi · Vol. 1, Issue 1, 2024 · pp. 19–23 Read article
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A review on the Enhancing Heat Exchanger Efficiency with CuO/Water Nanofluid in a Shell and Helical Coil System
Abstract: Over the years, there has been a lot of focus on improving heat transmission by utilizing various approaches in an effort to make heat exchangers smaller and less expensive. The following methods have been found to be the most successful in increasing heat transfer rate in heat exchangers: Nano-Fluids, first (3) Rubbing heat exchanger surfaces rough. (2) Inserting fluid tabulators. However, a combination of all three approaches or any two …
Published in Trends in Mechanical Engineering & Technology Read article
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Influence of Gd Doping in Structural, Morphological and Optical Properties of Zno Nanostructures Synthesised Via Sol-Gel Processes
Abstract: In this study, nanocrystalline Zn1-xGdx (x=0.0 and 0.03) samples were synthesised via the Sol-gel combustion process. An array of analytical techniques was employed to examine the prepared samples to determine their different physical features. For both pristine and Gd-doped samples, the crystal symmetry is hexagonal with the P63mc space group which is verified via the Rietveld refinement analysis of X-ray diffraction (XRD) data. The atoms' bond length Zn-O and bond …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 219–225 Read article
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Factors Affecting Shear Stress on Tablet Hardness and Disintegration
Abstract: The quality and effectiveness of pharmaceutical tablets depend heavily on several factors influencing shear stress on tablet hardness and disintegration. These factors include formulation composition, wherein the selection and concentration of excipients and active ingredients affect how the tablet material responds to shear stress. Additionally, the compression force, speed, and duration during tablet compression are critical, impacting tablet hardness and disintegration properties. Tablet geometry and design, along with tablet press …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 2, 2024 · pp. 1–19 Read article
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Improving Polymer Composite Properties Through Reinforcement Learning Guided Prototyping A Novel Approach for Material Engineering
Abstract: Innovative approaches integrating reinforcement learning (RL) and machine learning (ML) into the fields of polymer composite prototyping and soft actuator manufacturing for applications. This new an algorithm utilizing RL optimizes polymer composite fabrication parameters to enhance material properties efficiently. By iteratively adjusting parameters based on predefined objectives, the RL agent guides the prototyping process, promising to revolutionize polymer composite engineering. A finest control method for locked loop control of Shape …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 208–218 Read article
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A Study of Environmental Pollution in Some Areas of the City of Najaf for Some Heavy Metals
Abstract: Pollution is one of the most important problems that people face at the present time, and the problem of soil pollution is the most serious, due to its relationship to human health and other organisms. Soil sample collection areas in the city of Najaf were chosen based on several factors, including traffic, industrial and urban activities, and population density. Soil samples were taken at a depth level ranging between 0-15 …
Published in Research & Reviews : Journal of Ecology · Vol. 13, Issue 2, 2024 · pp. 14–23 Read article
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Securing the Internet of Things: Challenges and Solutions in the Era of IIoT
Abstract: The manufacturing, healthcare, and transportation sectors have undergone revolutionary changes due to the swift growth of the Internet of Things (IoT) and its industrial cousin, the Industrial Internet of Things (IoT). However, this technological advancement comes with significant security challenges. The heterogeneity of devices, ranging from simple sensors to complex machinery, creates a diverse attack surface. Additionally, many IoT devices lack robust security features, often due to cost constraints or …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 11, Issue 2, 2024 · pp. 34–44 Read article
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Toxicological Optimization and Assessment of Buccal Films Containing Felodipine Co-crystals to Enhance Bioavailability
Abstract: The preformulation study of felodipine was carried out and it was found that the drug is poorly water soluble. The co-crystals were prepared using three different co-formers sorbitol, ascorbic acid and oxalic acid. The solublity enhancement was observed in combination with sorbitol compared to other co-formers used. The characterization of co crystals was performed like PXRD, FTIR, SEM Analysis. XRD results indicates the amorphous form of the drug. The co-crystals …
Published in Research and Reviews: A Journal of Toxicology · Vol. 14, Issue 2, 2024 · pp. 10–29 Read article
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Testing of Efficiency of Wind Turbine Blade NACA2415 Aerofoil Type Using Recycled Carpet Waste Polymer Composite Material
Abstract: In 2020, over 50% of residential properties in the United States were outfitted with carpet flooring, boasting an average longevity ranging from 10 to 18 years. Carpets are crafted from various fibers, including woven nylon, polyester, polypropylene, or wool fibers. Historically, nearly 6 billion pounds of discarded carpets were directed to landfill sites, perpetually undergoing decomposition processes. My current project entails the fabrication of a wind turbine blade utilizing a …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 314–324 Read article
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Investigation on Dry Sliding Wear Behaviour of AlSi7Mg0.3/B4C/ZrO2 Hybrid Composites using Taguchi Method
Abstract: Hybrid Aluminium/Boron carbide/Zirconium oxide (AlSi7Mg0.3/B4C/ZrO2) composites were fabricated utilizing stir casting technique by varying boron carbide content (4wt.%, 8wt.% and 12wt.%) and utilizing a fixed amount (4wt.%) of zirconium oxide particles. Optical microscopy revealed that B4C and ZrO2 particulates were dispersed uniformly in AlSi7Mg0.3 matrix. Dry sliding wear experiments were carried out utilizing the pin-on-disc tribometer with various levels of applied loads, sliding speeds and weight percentage of boron carbide …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 166–177 Read article
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Reaching Conditions for Discrete-time Sliding Mode Control: Analysis and Design
Abstract: Sliding mode control (SMC) is a robust control method widely used in engineering due to its ability to handle uncertainties and disturbances effectively. In discrete-time sliding mode control (DSMC), system trajectories are constrained to sliding surfaces in the state space, leading to improved performance and stability. This paper provides an overview of DSMC, focusing on its applications, advantages, and limitations. It discusses the use of DSMC in various engineering fields …
Published in International Journal of Electrical Machine Analysis and Design · Vol. 2, Issue 1, 2024 · pp. 7–14 Read article